Question: orthogonal projection matrix 5. Let u be a deterministic n X 1 vector such that all = 1. Consider the n X n matrices A

orthogonal projection matrix

5. Let u be a deterministic n X 1 vector such that \"all = 1. Consider the n X n matrices A = In +uu' and B = uu'. (a) Which of the matrices is an orthogonal projection matrix? Justify your answer. (b) Let y N N (07 B) be a random vector. Find the distribution of the random vector 2 = Ay

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